From 06783261751a44c63680e94005a4763151bc1134 Mon Sep 17 00:00:00 2001 From: Chris Packham Date: Wed, 5 Jul 2017 22:13:56 +1200 Subject: [PATCH] i2c: pca-platform: unconditionally use devm_gpiod_get_optional Allow for the reset-gpios property to be defined in the device tree or via a GPIO lookup table. Signed-off-by: Chris Packham Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-pca-platform.c | 21 ++++----------------- 1 file changed, 4 insertions(+), 17 deletions(-) diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c index 853a2ab..b90193d 100644 --- a/drivers/i2c/busses/i2c-pca-platform.c +++ b/drivers/i2c/busses/i2c-pca-platform.c @@ -173,33 +173,20 @@ static int i2c_pca_pf_probe(struct platform_device *pdev) i2c->adap.dev.parent = &pdev->dev; i2c->adap.dev.of_node = np; + i2c->gpio = devm_gpiod_get_optional(&pdev->dev, "reset-gpios", GPIOD_OUT_LOW); + if (IS_ERR(i2c->gpio)) + return PTR_ERR(i2c->gpio); + if (platform_data) { i2c->adap.timeout = platform_data->timeout; i2c->algo_data.i2c_clock = platform_data->i2c_clock_speed; - if (gpio_is_valid(platform_data->gpio)) { - ret = devm_gpio_request_one(&pdev->dev, - platform_data->gpio, - GPIOF_ACTIVE_LOW, - i2c->adap.name); - if (ret == 0) { - i2c->gpio = gpio_to_desc(platform_data->gpio); - gpiod_direction_output(i2c->gpio, 0); - } else { - dev_warn(&pdev->dev, "Registering gpio failed!\n"); - i2c->gpio = NULL; - } - } } else if (np) { i2c->adap.timeout = HZ; - i2c->gpio = devm_gpiod_get_optional(&pdev->dev, "reset-gpios", GPIOD_OUT_LOW); - if (IS_ERR(i2c->gpio)) - return PTR_ERR(i2c->gpio); of_property_read_u32_index(np, "clock-frequency", 0, &i2c->algo_data.i2c_clock); } else { i2c->adap.timeout = HZ; i2c->algo_data.i2c_clock = 59000; - i2c->gpio = NULL; } i2c->algo_data.data = i2c; -- 2.7.4